Toyota Venza: Window Defogger System
- Parts Location
- Precaution
- System Description
- System Diagram
- How To Proceed With Troubleshooting
- Problem Symptoms Table
- Terminals Of Ecu
- Data List / Active Test
- Diagnosis System
- Rear Window Defogger System does not Operate
Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT RR DEF RELAY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
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Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
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Other materials about Toyota Venza:
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the LH side and RH side.
The following procedure is for the LH side.
If the sensor rotor needs to be replaced, replace it together with the
rear drive shaft assembly.
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ECU Power Source Circuit
DESCRIPTION
When the ignition switch is turned to ON, voltage from the ECM's MREL terminal
is applied to the EFI MAIN relay. This causes the contacts of the EFI MAIN relay
to close, which supplies power to terminal +B of the TCM.
WIRING DIAGRAM
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Inspection
INSPECTION
PROCEDURE
1. INSPECT INNER REAR VIEW MIRROR ASSEMBLY
(a) Inspect operation of the electrochromic inner mirror.
(1) Connect a positive (+) lead from the battery to terminal 1 and a negative
(-) lead to terminal 2.
(2) Press the AUTO switch.
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